CA1103301A - Method of and apparatus for synchronously transferring an original and copying paper for electrostatic photoduplication - Google Patents
Method of and apparatus for synchronously transferring an original and copying paper for electrostatic photoduplicationInfo
- Publication number
- CA1103301A CA1103301A CA305,254A CA305254A CA1103301A CA 1103301 A CA1103301 A CA 1103301A CA 305254 A CA305254 A CA 305254A CA 1103301 A CA1103301 A CA 1103301A
- Authority
- CA
- Canada
- Prior art keywords
- paper
- mount
- copying
- edge engaging
- copying paper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title abstract description 7
- 238000012546 transfer Methods 0.000 claims description 50
- 230000000694 effects Effects 0.000 claims description 2
- 230000005484 gravity Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000003534 oscillatory effect Effects 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 3
- 238000010291 electrical method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
- G03G15/28—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which projection is obtained by line scanning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/02—Separating articles from piles using friction forces between articles and separator
- B65H3/06—Rollers or like rotary separators
- B65H3/0669—Driving devices therefor
Abstract
METHOD OF AND APPARATUS FOR SYNCHRONOUSLY TRANSFERRING AN
ORIGINAL AND COPYING PAPER FOR ELECTROSTATIC PHOTODUPLICATION
Abstract of the Disclosure The specification discloses a method and apparatus for synchronously transferring an original and copying paper for electrostatic photoduplication. The front end of the copy-ing paper is transferred to a predetermined position where the copying paper is on standby by the time a period T1 has elapsed after a mount for the original is transferred from a stopping point in the cycle of movement of the mount. The copying paper is transferred to an exposure starting point at the same time an original placed on the mount is transferred to an irradiation starting point after a period of time T2 has elapsed after the end of the period T1, and thereafter the original is irradiated and the copying paper is transferred while the original and copying paper are transferred at a predetermined rate. By using mechanical apparatus rather than electrical equipment in the paper feed, complex wiring can be avoided, maintenance is simplified and reliability is improved.
ORIGINAL AND COPYING PAPER FOR ELECTROSTATIC PHOTODUPLICATION
Abstract of the Disclosure The specification discloses a method and apparatus for synchronously transferring an original and copying paper for electrostatic photoduplication. The front end of the copy-ing paper is transferred to a predetermined position where the copying paper is on standby by the time a period T1 has elapsed after a mount for the original is transferred from a stopping point in the cycle of movement of the mount. The copying paper is transferred to an exposure starting point at the same time an original placed on the mount is transferred to an irradiation starting point after a period of time T2 has elapsed after the end of the period T1, and thereafter the original is irradiated and the copying paper is transferred while the original and copying paper are transferred at a predetermined rate. By using mechanical apparatus rather than electrical equipment in the paper feed, complex wiring can be avoided, maintenance is simplified and reliability is improved.
Description
~ 330~
The present invention relates to a method of and apparatus for synchronizing the transfer of an original and copying paper for electrostatic photoduplication.
The transfer of an original and copying paper during electrostatic photoduplication have heretofore been synchronized by electrical methods. In such electrical methods, a detector means, such as a limit switch, micro-switch or the like, is disposed in a suitable position between a copying paper inserting section and an exposure starting point in a copying paper transferring path so that the copying paper transferred thereby can be detected.
Then, the rotation of copying paper transferring rolls is stopped for a predetermined period of time by an electro-magnetic clutch connected thereto, which is actuated by a timer. The electromagnetic clutch is then operated in accordance with the transfer of the originals in order to drive the transfer rolls so that the copying paper is transferred. In such electrical methods, not only is the cost of manufacturing the copying machine high but also the electrical cor.nections are complicated. Therefore, errors in wiring during the production of the copying machine are liable to occur and it is necessary that electrical tests be conducted during the production thereof. Moreover, maintenance and inspection of the copying machine is difficult.
An object of the present invention is to eliminate, at least partially, the above-mentioned drawbacks encountered in conventional apparatus, by synchronizing the transfer of original and copying paper by a mechanical means moved in accordance with the mount for the original.
According to the invention there is provided an
The present invention relates to a method of and apparatus for synchronizing the transfer of an original and copying paper for electrostatic photoduplication.
The transfer of an original and copying paper during electrostatic photoduplication have heretofore been synchronized by electrical methods. In such electrical methods, a detector means, such as a limit switch, micro-switch or the like, is disposed in a suitable position between a copying paper inserting section and an exposure starting point in a copying paper transferring path so that the copying paper transferred thereby can be detected.
Then, the rotation of copying paper transferring rolls is stopped for a predetermined period of time by an electro-magnetic clutch connected thereto, which is actuated by a timer. The electromagnetic clutch is then operated in accordance with the transfer of the originals in order to drive the transfer rolls so that the copying paper is transferred. In such electrical methods, not only is the cost of manufacturing the copying machine high but also the electrical cor.nections are complicated. Therefore, errors in wiring during the production of the copying machine are liable to occur and it is necessary that electrical tests be conducted during the production thereof. Moreover, maintenance and inspection of the copying machine is difficult.
An object of the present invention is to eliminate, at least partially, the above-mentioned drawbacks encountered in conventional apparatus, by synchronizing the transfer of original and copying paper by a mechanical means moved in accordance with the mount for the original.
According to the invention there is provided an
- 2 -~'1 11~3;~1 apparatus for synchronously transferring an original and a sheet of copying paper for electrostatic photo-duplication, said apparatus comprising a mount for holding the original, said mount bèing mounted for reciprocal movement in said apparatus in a plane parallel to the plane of the original, a driving mechanism connected to the mount for reciprocat-ing the mount at a predetermined speed, means for directing light at an irradiation point along the path of recipro-cation of said mount, paper transfer means for feeding a sheet of copy paper along a copying paper transfer path in said apparatus, exposure means at an exposure point alonq said transfer path spaced from said paper feeding means in the direction of paper feed, image reflecting means for directing the image from said irradiation point to said exposure point~ for optically aligning the exposure point with said irradiation point, paper edge engaging means positioned along said paper transfer path between said . transfer means and said exposure point, said paper edge engaging means being movable into and out of the transfer path said paper transfer means normally being in a con-dition in which it does not transfer copying paper, and said paper edge engaging means normally being in the transfer path of the copying paper, and operating means : connected to said paper transfer means and said paper edge engaging means and actuated in response to movement of said mount for changing the condition of said paper : transfer means to a condition for transferring paper and for simultaneously moving said paper edge engaging means out of the copying paper transfer path when said mount has reached a predetermined position along the path of movement thereof at which position the time for the leading edge of ~3xq the original to reach the irradiation point from said predetermined position is the same as the time for the leading edge of the copying paper to be fed from said edge engaging means to said exposure point.
Copying paper may be automatically fed in the follow-ing manner. The feeding of copying paper is started by paper feeding members when a period of time Tol, which is in the midst of the time Tl, has elapsed after the starting of transfer of the mount for the original. ~hus, the copying paper is transferred while aligning the front end thereof with a predetermined position or a position ~ where it is stopped by `:
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a stopper, so that it is on standby therein, by the time a period of time T2 llas elapsed after the lapse of the time Tol, i.e.
by the time a period of time Tl (To1 ~ T2 ~ Tl) has elapsed after the starting of transfer of the mount for the original.
When copying paper is manually fed, it is necessary that the paper be on standby with the front end thereof in a predeter-mined position by the time a period of time T1 has elapsed after the starting of transfer of the mount for the original.
The method and apparatus according to the present invention may lQ be applied to both of the above systems of feeding copying paper.
An embodiment of the present invention applied to an electrostatic photocopying machine will be described with reference to the accompanying drawings, in which Figs. l-A and l-B are simplified side elevational views in cross section of an electrostatic photocopying machine to which an embodiment of the method and apparatus according to the present invention are applied;
Fig. 2 is a perspective view of a main shaft, paper feeding members, cams, arms and lever in the copying machine as shown in Figs. l-A and 1-B;
Figs, 3-A and 3-B are a side elevational view and a perspective view, respectively, of a second V-shaped arm;
Figs. 4 and 5 are enlarged side elevational views in cross section of th~ paper feeding members, cams, arms, lever and oscillatory frame in action prior to and after the copying operation;
Fig. 6 is a perspective view of a sto~per; and Figs~ 7A-7D are side elevational views in cross . section of copying paper with paper feeding members in each stage of aCtiODS ~hereof.
Referring to Figs. l-A, l-B and 29 reference numeral 11033~`1 1 denotes a mount for the original. The mount is supported on a machine body 2 by means of rollers (not shown) so that it is horizontally reciprocable in the directions of the arrows in . Fig. 1. Reference numeral 3 denotes a frame secured to a side portion of the mount 1 and movable along the front surface of the machine body 2 with the mount 1. Reference numeral 4 denotes a chain for driving the mount 1, and the chain 4 is wrapped around sprockets 5, 6 which are rotatably mounted on shafts provided in the machine body 2. The chain 4 is provided at a predetermined portion thereof with an engagement member 7, which is fitted in a guide recess 8 provided in the movable frame 3. Therefore, when the chain 4 is moved, the movable frame 3 is driven horizontally by the engagement member 7 by virtue of its engagement with the recess 8 in the frame 3.
Assuming that one cycle of movement of the mount 1 is represented by "A", the mount 1 begins to be moved at a predetermined point (stopping point) S in the cycle A and returns to the point S
at the end of the cycle. In this embodiment, the stopping point S shown by an imaginary line in Fig. l-A is aligned with the rear end of the mount 1.
Reference symbol B denotes a path for the copying paper. The copying paper is transferred along the path B by a plurality of rolls which are driven by chains 9, 10. Reference numeral 11 denotes a drive motor for the chains 9, 10, and the driving force of the chain 9 causes the sprocket 6 to rotate via a clutch so that the chain 4 for driving the mount 1 is actuated.
Reference numeral 12 denotes a cassette for stocking the copying papers. The cassette is vertically oscillatably mounted in the machine body 2 in the manner shown in Fig. l-A.
When the copying paper is automatically fed from the cassette 12, 33C~l the cassette is kept inclined in the position shown in phantom in Fig. l-B. When the copying paper i6 fed by hand one sheet at a time, the cassette 12 is moved downwardly from the above-mentioned position to the lower position shown in phantom in Fig. l-A, so that the upper surface of the cassette 12 serves as a guide for the operator for inserting the copying paper into the maclline.
Refcrence numeral 13 denotes a main shaft for feeding the copying paper. The main shaft is located in the machine body 2 above the lower end (from which the copying paper is fed) of the cassette 12. As is clearly shown in Fig. 2, a plurality of substantially fan-shaped paper feeding members 14 having a suitable degree of elasticity and made of, for example, rubber are mounted on the central portion of the main shaft 13. The fan-shaped paper feeding members 14 have in their base portions a mounting recess 14a and a cut surface 14b so t~at they are detachably and position-adjustably fitted on the main shaft 13.
A plurality of skid-proof grooves are formed in the paper feeding arcuate surfaces of the members 14, so that the copying 20 paper in the cassette is accurately fed. Cams 15, 16, 17 are mounted on one end portion of the main shaft 13 and mounted on the other end portion thereof is a disc 18 having a projection 18a at one point on the peripheral side surface thereof (see Fig. 4). A first substantially V-shaped arm 19, a substantially Z-shaped arm 20 and a second substantially V-shaped arm 21 are provided so that they are engaged with the cams 15, 16, 17, respectively, and these arms 19, 20, 21 are pivotally connected to the machine body 2. A flexible lever 22, which is engageable with the disc 18, is provided at the end portion of the main 30 shaft 13 on which the disc 18 is mounted. The lever 22 is also pivotally connected to the machine body 2. The first 33~ 1 V-sl~ape(l a~m 19 consists of a pair of arm portions l9A, l9B which are firmly connected to each other. The second V-shaped arm 21 consists of a pair of arm portions 21A, 21B which are pivotally connected to each other as shown in Figs. 3-A and 3-B. These arm portions 21A and 21B are normally kept at a predetermined angle ~ by a spring 23 provided therebetween, and they can be kept loose owing to the spring 23 and a gap 24 between the pivotally movable portions thereof. The lever 22 consists of a first lever portion 22A having a hook 22a at the front end portion thereof, and a second lever portion 22B pivotally con-nected thereto as shown in Fig. 4. The second lever portion 22B is pivotally connected to the machine body 2 at a portion 29 thereof. The lever 22 is normally kept at a predetermined angle by a spring (not shown) provided between the lever portions 22A, 22B.
Fig. 4 shows a principal portion of the embodiment prior to the feeding of copying paper. In this stage, an end l9b of the arm portion l9B o~ the first V-shaped arm 19 is engaged with an engagement portion 15a of the cam lS to thereby prevent the main shaft 13 from being rotated. One end 20a of the Z-shaped arm 20 is engaged with the cam 16 at a portion thereof that is spaced from an engagement portion 16a as shown in Fig. 4. When the cam 16 is rotated, end 20a of the Z-shaped arm 20 engages with the engagement portion 16a to stop further rotation of the cam 16. An end 21a of the arm portion 21A of the second V-shaped arm 21 opposed to the cam 17 is engaged with the cam 17 at a portion thereof that is spaced from an engagement portion 17a, while an end 21b of the other arm portion 21B is engaged with an engagement portion 25a of a cam 25 which will be described later. The hook 22a of the first lever 22A which constitutes the lever 22 is not engaged with ~1$33~i1 the projection 18a of the disc 18 when the machine is not ln operation or in such a state as shown in Fig. 4. The cam 25 is mounted on one end portion of a shaft 27 on which a copying paper driving roll 26 is also mounted. The shaft 27 is supported on the machine body 2 via bearings and driven by the chain 9 through a one-way clutch. The cam 25 used in this embodiment has two engagement portions 25a in opposed positions thereon.
Reference numeral 28 denotes an oscillatory frame integrally formed with the second lever portion 22B of the lever 22, and the oscillatory frame 28 can be oscillated with the second lever portion 22B about a pivot 29 for the lever.
The oscillatory frame 28 is provided with a shaft 31 mounted thereon via a bearing, and a driven roll 30 opposed to the copying paper driving roll 26 is mounted on the shaft 31.
Stopper mounting members 32, 32 are rotatably fitted on both end portions of the shaft 31 as shown in Fig. 6. A substantially cross-sectionally L-shaped stopper 33 is secured to the front end surfaces of the stopper mounting members 32, 32, which is extended parallel to the driven roll 30. A spring 34 is mounted between the stopper 33 and a fulcrum pin provided on the oscillatory frame 28, and the lower en~ portion of the stopper 33 is supported by a bar 35 secured to the machine body 2 when the oscillatory frame 28 is inclined, as shown in Fig. 4. When the disc 18 is rotated, as the projection 18a engages with the hook 22a of the lever 22, the second lever portion 22B in the state shown in Fig. 4 is rotated counter-clockwise about the pivot 29 and the oscillatory frame 28 is thereby oscillated in the same direction about the pivot 29 to a substantially horizontal position. When the oscillatory frame 28 is thus oscillated, the shaft 31 of the driven roll 30 and the stopper ~331 mounting members 32, 32 are all moved to higher positions.
Consequently, the upper end of the stopper 33 is pulled by the spring 34 so as to be rotated in a direction opposite to the ' one in which the oscillatory frame 28 is oscillated. The stopper 33 thus falls frontwardly to prevent itself from being projected into the path of copying paper (refer to Fig. 5).
Referring again to Figs. l-A, l-B and 2, the frame
Copying paper may be automatically fed in the follow-ing manner. The feeding of copying paper is started by paper feeding members when a period of time Tol, which is in the midst of the time Tl, has elapsed after the starting of transfer of the mount for the original. ~hus, the copying paper is transferred while aligning the front end thereof with a predetermined position or a position ~ where it is stopped by `:
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a stopper, so that it is on standby therein, by the time a period of time T2 llas elapsed after the lapse of the time Tol, i.e.
by the time a period of time Tl (To1 ~ T2 ~ Tl) has elapsed after the starting of transfer of the mount for the original.
When copying paper is manually fed, it is necessary that the paper be on standby with the front end thereof in a predeter-mined position by the time a period of time T1 has elapsed after the starting of transfer of the mount for the original.
The method and apparatus according to the present invention may lQ be applied to both of the above systems of feeding copying paper.
An embodiment of the present invention applied to an electrostatic photocopying machine will be described with reference to the accompanying drawings, in which Figs. l-A and l-B are simplified side elevational views in cross section of an electrostatic photocopying machine to which an embodiment of the method and apparatus according to the present invention are applied;
Fig. 2 is a perspective view of a main shaft, paper feeding members, cams, arms and lever in the copying machine as shown in Figs. l-A and 1-B;
Figs, 3-A and 3-B are a side elevational view and a perspective view, respectively, of a second V-shaped arm;
Figs. 4 and 5 are enlarged side elevational views in cross section of th~ paper feeding members, cams, arms, lever and oscillatory frame in action prior to and after the copying operation;
Fig. 6 is a perspective view of a sto~per; and Figs~ 7A-7D are side elevational views in cross . section of copying paper with paper feeding members in each stage of aCtiODS ~hereof.
Referring to Figs. l-A, l-B and 29 reference numeral 11033~`1 1 denotes a mount for the original. The mount is supported on a machine body 2 by means of rollers (not shown) so that it is horizontally reciprocable in the directions of the arrows in . Fig. 1. Reference numeral 3 denotes a frame secured to a side portion of the mount 1 and movable along the front surface of the machine body 2 with the mount 1. Reference numeral 4 denotes a chain for driving the mount 1, and the chain 4 is wrapped around sprockets 5, 6 which are rotatably mounted on shafts provided in the machine body 2. The chain 4 is provided at a predetermined portion thereof with an engagement member 7, which is fitted in a guide recess 8 provided in the movable frame 3. Therefore, when the chain 4 is moved, the movable frame 3 is driven horizontally by the engagement member 7 by virtue of its engagement with the recess 8 in the frame 3.
Assuming that one cycle of movement of the mount 1 is represented by "A", the mount 1 begins to be moved at a predetermined point (stopping point) S in the cycle A and returns to the point S
at the end of the cycle. In this embodiment, the stopping point S shown by an imaginary line in Fig. l-A is aligned with the rear end of the mount 1.
Reference symbol B denotes a path for the copying paper. The copying paper is transferred along the path B by a plurality of rolls which are driven by chains 9, 10. Reference numeral 11 denotes a drive motor for the chains 9, 10, and the driving force of the chain 9 causes the sprocket 6 to rotate via a clutch so that the chain 4 for driving the mount 1 is actuated.
Reference numeral 12 denotes a cassette for stocking the copying papers. The cassette is vertically oscillatably mounted in the machine body 2 in the manner shown in Fig. l-A.
When the copying paper is automatically fed from the cassette 12, 33C~l the cassette is kept inclined in the position shown in phantom in Fig. l-B. When the copying paper i6 fed by hand one sheet at a time, the cassette 12 is moved downwardly from the above-mentioned position to the lower position shown in phantom in Fig. l-A, so that the upper surface of the cassette 12 serves as a guide for the operator for inserting the copying paper into the maclline.
Refcrence numeral 13 denotes a main shaft for feeding the copying paper. The main shaft is located in the machine body 2 above the lower end (from which the copying paper is fed) of the cassette 12. As is clearly shown in Fig. 2, a plurality of substantially fan-shaped paper feeding members 14 having a suitable degree of elasticity and made of, for example, rubber are mounted on the central portion of the main shaft 13. The fan-shaped paper feeding members 14 have in their base portions a mounting recess 14a and a cut surface 14b so t~at they are detachably and position-adjustably fitted on the main shaft 13.
A plurality of skid-proof grooves are formed in the paper feeding arcuate surfaces of the members 14, so that the copying 20 paper in the cassette is accurately fed. Cams 15, 16, 17 are mounted on one end portion of the main shaft 13 and mounted on the other end portion thereof is a disc 18 having a projection 18a at one point on the peripheral side surface thereof (see Fig. 4). A first substantially V-shaped arm 19, a substantially Z-shaped arm 20 and a second substantially V-shaped arm 21 are provided so that they are engaged with the cams 15, 16, 17, respectively, and these arms 19, 20, 21 are pivotally connected to the machine body 2. A flexible lever 22, which is engageable with the disc 18, is provided at the end portion of the main 30 shaft 13 on which the disc 18 is mounted. The lever 22 is also pivotally connected to the machine body 2. The first 33~ 1 V-sl~ape(l a~m 19 consists of a pair of arm portions l9A, l9B which are firmly connected to each other. The second V-shaped arm 21 consists of a pair of arm portions 21A, 21B which are pivotally connected to each other as shown in Figs. 3-A and 3-B. These arm portions 21A and 21B are normally kept at a predetermined angle ~ by a spring 23 provided therebetween, and they can be kept loose owing to the spring 23 and a gap 24 between the pivotally movable portions thereof. The lever 22 consists of a first lever portion 22A having a hook 22a at the front end portion thereof, and a second lever portion 22B pivotally con-nected thereto as shown in Fig. 4. The second lever portion 22B is pivotally connected to the machine body 2 at a portion 29 thereof. The lever 22 is normally kept at a predetermined angle by a spring (not shown) provided between the lever portions 22A, 22B.
Fig. 4 shows a principal portion of the embodiment prior to the feeding of copying paper. In this stage, an end l9b of the arm portion l9B o~ the first V-shaped arm 19 is engaged with an engagement portion 15a of the cam lS to thereby prevent the main shaft 13 from being rotated. One end 20a of the Z-shaped arm 20 is engaged with the cam 16 at a portion thereof that is spaced from an engagement portion 16a as shown in Fig. 4. When the cam 16 is rotated, end 20a of the Z-shaped arm 20 engages with the engagement portion 16a to stop further rotation of the cam 16. An end 21a of the arm portion 21A of the second V-shaped arm 21 opposed to the cam 17 is engaged with the cam 17 at a portion thereof that is spaced from an engagement portion 17a, while an end 21b of the other arm portion 21B is engaged with an engagement portion 25a of a cam 25 which will be described later. The hook 22a of the first lever 22A which constitutes the lever 22 is not engaged with ~1$33~i1 the projection 18a of the disc 18 when the machine is not ln operation or in such a state as shown in Fig. 4. The cam 25 is mounted on one end portion of a shaft 27 on which a copying paper driving roll 26 is also mounted. The shaft 27 is supported on the machine body 2 via bearings and driven by the chain 9 through a one-way clutch. The cam 25 used in this embodiment has two engagement portions 25a in opposed positions thereon.
Reference numeral 28 denotes an oscillatory frame integrally formed with the second lever portion 22B of the lever 22, and the oscillatory frame 28 can be oscillated with the second lever portion 22B about a pivot 29 for the lever.
The oscillatory frame 28 is provided with a shaft 31 mounted thereon via a bearing, and a driven roll 30 opposed to the copying paper driving roll 26 is mounted on the shaft 31.
Stopper mounting members 32, 32 are rotatably fitted on both end portions of the shaft 31 as shown in Fig. 6. A substantially cross-sectionally L-shaped stopper 33 is secured to the front end surfaces of the stopper mounting members 32, 32, which is extended parallel to the driven roll 30. A spring 34 is mounted between the stopper 33 and a fulcrum pin provided on the oscillatory frame 28, and the lower en~ portion of the stopper 33 is supported by a bar 35 secured to the machine body 2 when the oscillatory frame 28 is inclined, as shown in Fig. 4. When the disc 18 is rotated, as the projection 18a engages with the hook 22a of the lever 22, the second lever portion 22B in the state shown in Fig. 4 is rotated counter-clockwise about the pivot 29 and the oscillatory frame 28 is thereby oscillated in the same direction about the pivot 29 to a substantially horizontal position. When the oscillatory frame 28 is thus oscillated, the shaft 31 of the driven roll 30 and the stopper ~331 mounting members 32, 32 are all moved to higher positions.
Consequently, the upper end of the stopper 33 is pulled by the spring 34 so as to be rotated in a direction opposite to the ' one in which the oscillatory frame 28 is oscillated. The stopper 33 thus falls frontwardly to prevent itself from being projected into the path of copying paper (refer to Fig. 5).
Referring again to Figs. l-A, l-B and 2, the frame
3 movable with the mount 1 for the original is provided at the lower end portion thereof with an operation member 36 pivotally connected thereto, which is engaged with tips l9a, 20b of the arms 19, 20. The operation member 36 can be oscillated in only one direction in which the frame 3 is moved, and it is prevented by a restricting member 37 from being moved in other directions.
Referring to Fig. l-A, reference numeral 38 denotes an exposing lamp. The light from the exposing lamp 38 is passed through the original-irradiating portion 39 in the upper portion of the machine body 2 so as to irradiate the original placed on the mount i, and an image of the original enters an exposure window 44 above the path B of the copying paper via a first mirror 40, an in-mirror lens 41, and a second mirror 43. The image of the original is thus reflected upon the copying paper. Reference symbol I denotes an irradiation starting point in the cycle A of movement of the mount 1, and E an exposure starting point in the path B of copying paper.
Ihe irradiation starting point I and exposure starting point E are optically connected to each other when the exposure is started.
The operation of the embodiment having the above-mentioned construction will now be described.
When a power switch and prlnting button ~not shown) are ~urned on to energize the drive motor 11 and thereby drive g ~1~33~`1 the chains 9, 10, the sprocket 6 is rotated via a clutch and the chain 4 is driven. When the chain 4 is thus driven, the frame 3 in a position (stopping position) as shown in phantom in Fig. l-A begins to be moved leftward. At this time, the mount 1 for the original beings to be moved leftward from a predetermined stopping point S in the cycle of movement thereof (exposure preparation stage). Before the mount 1 has started to be moved, and, when it starts to be moved as ~entioned above, the copying paper feeding members 14, cams 15, 16, 17, arms 19, 20, 21, lever 22, disc 18, and oscillatory frame 28 are in positions as shown in Figs. 2 and 4. When the mount 1 comes up to the end of the exposure prepara$ion stage, the operation member 36 pivotally connected to the movable fra~e 3 acts on the end l9a of the arm portion l9A of the first V-shaped arm 19.
Then, the end l9b of the arm portion l9B, which has been engaged with the engagement portion 15a of the cam 15, is disengaged therefrom so as to allow the paper feeding main shaft 13 to be rotated. When the main shaft 13 is rotated, the paper feeding members 14 mounted thereon are also rotated together to start the feeding of copying paper 45 stacked in the cassette 12.
(Let Tol equal the time starting with the initiation of movement of the mount 1 and ending with the initiation of feeding of copying paper 45.) The feeding of copying paper will be described with referen~e to Figs. 7A-7D. When the main shaft 13 is stopped, the arcuate surfaces of the paper feeding members 14 are not in contact with the copying paper as shown in Fig.
7A. When the main shaft 13 is rotated, the paper feeding mem-bers 14 are rotated together in the direction of the arrow and .contacted at the arcuate surfaces thereof with the uppermost copying paper 45 in the cassette 12. The frictional forces of the members 14 bend the front end portion of the copying paper 1~3;~
45 as showl~ Fig. 7B as the front end of the copying paper 45 is held by claws 46', 46'. When the paper feeding members 14 are further rotated, the front end of the copying paper 45 is released from the claws 46', 46' and runs out from the cassette 12 as shown in Fig. 7C. By the time the paper feeding members 14 move away from the uppermost copying paper 45, the copying paper 45 is advanced to a satisfactory extent as shown in Fig. 7D. The paper 45 is thereafter further advanced by the feeding acceleration exerted thereon and by the falling effect produced by its own weight, so that the front end portion of the paper 45 is passed between the paper driving roll 26 and driven roll 30 provided on the oscillatory frame 28 while impinging upon the stopper 33 where the paper remains stationary for a while. (The rotation of the paper feeding members 14 is stopped when the members 14 are in positions as shown in Fig.
7D.) After the uppermost copying paper 45 in the cassette 12 has been released from the claws 46', 46' by the rotation of the paper feeding members 14, the paper 45 is moved to a pre-determined position by its own weight. The copying paper 45 is ed in the manner as mentioned above by the rotation of the main shaft 13 and paper feeding members 14. When the main shaft 13 is rotated, the disc 18 in the position as shown in Fig. 4 is also rotated. Then, as shown in Fig. 5, the pro-jection 18a is engaged with the hook 22a at the end of the lever 22 so as to rotate the lever 22 about the pivot 29 and the second lever portion 22B, a member of the lever 22, is rotated counter-clockwise. When the second lever portion 22B is rotated, the oscillatory frame 28 is oscillated upwardly. As the frame 28 is oscillated to a horizontal position as shown 30 in Fig. 5~ the stopper 33 is pulled by the spring 34 and falls forwards so that the front end of the copying paper 45 is )3~
released. The copying paper 45 is then transferred as it is nipped by the paper driving roll 26 and driven roll 30. When a predetermined period of time has elapsed after th~ copying paper 45 was fed by the paper feeding members 14 to impinge at the front end thereof upon the stopper 33, the stopper 33 falls in the forward direction as the frame 28 is oscillatet upwardly. Consequently, the copying paper 45 stands by for a predetermined period of time as the front end thereof is in contact with the stopper 33. In the meantime, the second V-shaped arm 21 is in the position as shown in Fig. 4 while themain shaft 13 is stopped. When the end 21a of the arm portion 21A is disengaged from the engagement portion 17a of the cam 17 and when the end 21b of the arm portion 21B is engaged with the engagement portion 25a of the cam 25, the rotation of the copying paper driving roll 26 is stopped. However, when the cam 17 makes almost one complete rotation (at this time, the feeding of the copying paper 45 is carried out) in accordance with the rotation of the main shaft 13 which is rotated by the first V-shaped arm 19, so that the end 21a of the arm portion 21A of the second V-shaped arm 21 is engaged with the engage-ment portion 17a of the cam 17, the end 21b of the arm portion 21B is disengaged from the engagement portion 25a of the cam 25.
Thus, the rotation of the paper driving roll 26 is started. The rotation of the paper driving roll 26 is started when the oscillatory frame 2~ is raised to a substantially horizontal position. ~his may be clearly understood from Fig. 5. When the oscillatory frame 28 reaches a horizontal position so that the driven roll 30 comes close to the paper driving roll 26, the lower end 20a of the Z~shaped arm 20 is engaged with the engage-ment portion 16a of the cam 16 to thereby prevent the main shaft13 from being rotated. As a result, the lever 22 is held in the uppermost position by the projection 18a of the disc 18 ~1~3;~1 (refer to Fi~. 5~. By the time the oscillatory frame 28 has reached a horizontal position so that the driving roll 26 and driven roll 30, the rotation of which is just started, come close to each other, the stopper 33 falls frontwardly to release the restriction placed thereby on the front end of the copying paper 45. When the rolls 26, 30 come close to each other, the copying paper 45 begins to be further transferred while being held between these rolls 26, 30. Let T2 equal a period of time counted from the starting of the transfer of the copying paper 45 by the paper feeding members 14 to the restarting of the transfer of the copying paper 45 by the paper driving roll 26 and driven roll 30. Let Tl equal to the sum of TO2 and the above-mentioned Tol (Tl = Tol + To2). Tol may be arbitrarily set.
The copying paper 45 is passed through a charging region provided with a charged body 46 and reaches the exposure starting point E in the exposure portion 47 by the time a period of time T2 has elapsed after the paper 45 began to be transferred from a point where it contacts the stopper 33 to stand by (by the time a period of time T2 + T2 has elapsed after the feeding of the paper 45 was started by the paper feeding members 14, or by the tlme a period of time Tl + T2 has elapsed after the transfer of the mount 1 for original was started). The mount l_for original reaches the irradiation starting point I at the same time that the copying paper 45 reaches the exposure starting point E, and the front end of the original and that of the copying paper are optically connected to each o~her by the abo~e-mentioned optical system.
.At this time, the copying paper 45 beings to be transferred synchronously with the mount 1 at a predetermined rate so as to carry out the exposure of the paper 45. The copying paper 45 ~1033~1 the exposure of which has been finished is passed through developing rolls 48, 48', fixing rolls 49, 49', and discharge rolls 50, 50' disposed in the end portion of the path B of the paper 45 so as to be discharged onto a copying paper receiver 51 provided outside the machine body 2. The mount l which has passed the irradiation starting point I is further transferred to the right (exposure stroke) with respect to Fig. 1. The mount l is then reversed at the right end of the exposure stroke and moved to the left ~returning stroke) with respect to the drawing. When the operation member 36 provided at the lower end portion of the movable frame 3 acts on the upper end 20b of the Z-shaped arm 20 during the returning stroke, the arm 20 is rotated about the pivot thereof, and the lower end 20a of the arm 20, which has been engaged with the engagement portion 16a of the cam 16 to prevent the main shaft 13 from being rotated is disengaged therefrom to allow the main shaft 13 to be rotated again. When the main shaft 13 or the disc 18 is rptated, the projection 18a provided on the disc 18 is disengaged from the hooking portion 22a at the end of the lever 22. As a result, the lever 22 is oscillated and returned to its original position as shown in Fig. 4, and, at the same time, the oscillatory frame 28 is returned to its original position where it is inclined. In this case, the angle of rotation of the main shaft 13 is so small that it is just sufficient to disengage the hook 22a of the le~er 22 from the projection 18a of the disc 18. Then, the end l9b of t~e arm por~ion l9B of the first V-shaped arm 19 is immediately engaged with the engagement portion 15a of the cam 15 to stop the ^rotation of the main shaft 13. Thus, the copying machine is returned to ~he initial stage of operation as shown in Fig. 4, where the preparation for feeding the next copying paper is made.
3~1 When copies are continuously taken, the above-described opera-tion is repeated. A desired number of copies can be taken owing to a counter (not shown) provided in the copying machine.
After a copying operation has been completed, the mount 1 for the original is always stopped at a stopping point S in the path thereof.
When the copying paper 45 is fed by hand, the cassette 12 is lowered to the lower position as shown in phantom in Fig. l-A~ Then, the paper 45 may be fed by hand while using the cassette 12 as a guide, so that the front end of the paper 45 is contacted with the stopper 33. A printing button is thereafter pressed to transfer the paper 45 synchronously with the original, and the remaining part of the operation is the same as described above.
Thus, the original and copying paper can be synchron-ously transferred by a mechanical means unlike the conventional methods in which an electrical means using a detecting means, such as a limit switch is employed. Therefore, the method of the present invention makes complicated connections of electric wires unnecessary. Moreover, it permits a reduction of the cost of manufacturing the copying machines owing to the simple construction thereof and enables inspections to be carried out easily for the maintenance thereof.
Referring to Fig. l-A, reference numeral 38 denotes an exposing lamp. The light from the exposing lamp 38 is passed through the original-irradiating portion 39 in the upper portion of the machine body 2 so as to irradiate the original placed on the mount i, and an image of the original enters an exposure window 44 above the path B of the copying paper via a first mirror 40, an in-mirror lens 41, and a second mirror 43. The image of the original is thus reflected upon the copying paper. Reference symbol I denotes an irradiation starting point in the cycle A of movement of the mount 1, and E an exposure starting point in the path B of copying paper.
Ihe irradiation starting point I and exposure starting point E are optically connected to each other when the exposure is started.
The operation of the embodiment having the above-mentioned construction will now be described.
When a power switch and prlnting button ~not shown) are ~urned on to energize the drive motor 11 and thereby drive g ~1~33~`1 the chains 9, 10, the sprocket 6 is rotated via a clutch and the chain 4 is driven. When the chain 4 is thus driven, the frame 3 in a position (stopping position) as shown in phantom in Fig. l-A begins to be moved leftward. At this time, the mount 1 for the original beings to be moved leftward from a predetermined stopping point S in the cycle of movement thereof (exposure preparation stage). Before the mount 1 has started to be moved, and, when it starts to be moved as ~entioned above, the copying paper feeding members 14, cams 15, 16, 17, arms 19, 20, 21, lever 22, disc 18, and oscillatory frame 28 are in positions as shown in Figs. 2 and 4. When the mount 1 comes up to the end of the exposure prepara$ion stage, the operation member 36 pivotally connected to the movable fra~e 3 acts on the end l9a of the arm portion l9A of the first V-shaped arm 19.
Then, the end l9b of the arm portion l9B, which has been engaged with the engagement portion 15a of the cam 15, is disengaged therefrom so as to allow the paper feeding main shaft 13 to be rotated. When the main shaft 13 is rotated, the paper feeding members 14 mounted thereon are also rotated together to start the feeding of copying paper 45 stacked in the cassette 12.
(Let Tol equal the time starting with the initiation of movement of the mount 1 and ending with the initiation of feeding of copying paper 45.) The feeding of copying paper will be described with referen~e to Figs. 7A-7D. When the main shaft 13 is stopped, the arcuate surfaces of the paper feeding members 14 are not in contact with the copying paper as shown in Fig.
7A. When the main shaft 13 is rotated, the paper feeding mem-bers 14 are rotated together in the direction of the arrow and .contacted at the arcuate surfaces thereof with the uppermost copying paper 45 in the cassette 12. The frictional forces of the members 14 bend the front end portion of the copying paper 1~3;~
45 as showl~ Fig. 7B as the front end of the copying paper 45 is held by claws 46', 46'. When the paper feeding members 14 are further rotated, the front end of the copying paper 45 is released from the claws 46', 46' and runs out from the cassette 12 as shown in Fig. 7C. By the time the paper feeding members 14 move away from the uppermost copying paper 45, the copying paper 45 is advanced to a satisfactory extent as shown in Fig. 7D. The paper 45 is thereafter further advanced by the feeding acceleration exerted thereon and by the falling effect produced by its own weight, so that the front end portion of the paper 45 is passed between the paper driving roll 26 and driven roll 30 provided on the oscillatory frame 28 while impinging upon the stopper 33 where the paper remains stationary for a while. (The rotation of the paper feeding members 14 is stopped when the members 14 are in positions as shown in Fig.
7D.) After the uppermost copying paper 45 in the cassette 12 has been released from the claws 46', 46' by the rotation of the paper feeding members 14, the paper 45 is moved to a pre-determined position by its own weight. The copying paper 45 is ed in the manner as mentioned above by the rotation of the main shaft 13 and paper feeding members 14. When the main shaft 13 is rotated, the disc 18 in the position as shown in Fig. 4 is also rotated. Then, as shown in Fig. 5, the pro-jection 18a is engaged with the hook 22a at the end of the lever 22 so as to rotate the lever 22 about the pivot 29 and the second lever portion 22B, a member of the lever 22, is rotated counter-clockwise. When the second lever portion 22B is rotated, the oscillatory frame 28 is oscillated upwardly. As the frame 28 is oscillated to a horizontal position as shown 30 in Fig. 5~ the stopper 33 is pulled by the spring 34 and falls forwards so that the front end of the copying paper 45 is )3~
released. The copying paper 45 is then transferred as it is nipped by the paper driving roll 26 and driven roll 30. When a predetermined period of time has elapsed after th~ copying paper 45 was fed by the paper feeding members 14 to impinge at the front end thereof upon the stopper 33, the stopper 33 falls in the forward direction as the frame 28 is oscillatet upwardly. Consequently, the copying paper 45 stands by for a predetermined period of time as the front end thereof is in contact with the stopper 33. In the meantime, the second V-shaped arm 21 is in the position as shown in Fig. 4 while themain shaft 13 is stopped. When the end 21a of the arm portion 21A is disengaged from the engagement portion 17a of the cam 17 and when the end 21b of the arm portion 21B is engaged with the engagement portion 25a of the cam 25, the rotation of the copying paper driving roll 26 is stopped. However, when the cam 17 makes almost one complete rotation (at this time, the feeding of the copying paper 45 is carried out) in accordance with the rotation of the main shaft 13 which is rotated by the first V-shaped arm 19, so that the end 21a of the arm portion 21A of the second V-shaped arm 21 is engaged with the engage-ment portion 17a of the cam 17, the end 21b of the arm portion 21B is disengaged from the engagement portion 25a of the cam 25.
Thus, the rotation of the paper driving roll 26 is started. The rotation of the paper driving roll 26 is started when the oscillatory frame 2~ is raised to a substantially horizontal position. ~his may be clearly understood from Fig. 5. When the oscillatory frame 28 reaches a horizontal position so that the driven roll 30 comes close to the paper driving roll 26, the lower end 20a of the Z~shaped arm 20 is engaged with the engage-ment portion 16a of the cam 16 to thereby prevent the main shaft13 from being rotated. As a result, the lever 22 is held in the uppermost position by the projection 18a of the disc 18 ~1~3;~1 (refer to Fi~. 5~. By the time the oscillatory frame 28 has reached a horizontal position so that the driving roll 26 and driven roll 30, the rotation of which is just started, come close to each other, the stopper 33 falls frontwardly to release the restriction placed thereby on the front end of the copying paper 45. When the rolls 26, 30 come close to each other, the copying paper 45 begins to be further transferred while being held between these rolls 26, 30. Let T2 equal a period of time counted from the starting of the transfer of the copying paper 45 by the paper feeding members 14 to the restarting of the transfer of the copying paper 45 by the paper driving roll 26 and driven roll 30. Let Tl equal to the sum of TO2 and the above-mentioned Tol (Tl = Tol + To2). Tol may be arbitrarily set.
The copying paper 45 is passed through a charging region provided with a charged body 46 and reaches the exposure starting point E in the exposure portion 47 by the time a period of time T2 has elapsed after the paper 45 began to be transferred from a point where it contacts the stopper 33 to stand by (by the time a period of time T2 + T2 has elapsed after the feeding of the paper 45 was started by the paper feeding members 14, or by the tlme a period of time Tl + T2 has elapsed after the transfer of the mount 1 for original was started). The mount l_for original reaches the irradiation starting point I at the same time that the copying paper 45 reaches the exposure starting point E, and the front end of the original and that of the copying paper are optically connected to each o~her by the abo~e-mentioned optical system.
.At this time, the copying paper 45 beings to be transferred synchronously with the mount 1 at a predetermined rate so as to carry out the exposure of the paper 45. The copying paper 45 ~1033~1 the exposure of which has been finished is passed through developing rolls 48, 48', fixing rolls 49, 49', and discharge rolls 50, 50' disposed in the end portion of the path B of the paper 45 so as to be discharged onto a copying paper receiver 51 provided outside the machine body 2. The mount l which has passed the irradiation starting point I is further transferred to the right (exposure stroke) with respect to Fig. 1. The mount l is then reversed at the right end of the exposure stroke and moved to the left ~returning stroke) with respect to the drawing. When the operation member 36 provided at the lower end portion of the movable frame 3 acts on the upper end 20b of the Z-shaped arm 20 during the returning stroke, the arm 20 is rotated about the pivot thereof, and the lower end 20a of the arm 20, which has been engaged with the engagement portion 16a of the cam 16 to prevent the main shaft 13 from being rotated is disengaged therefrom to allow the main shaft 13 to be rotated again. When the main shaft 13 or the disc 18 is rptated, the projection 18a provided on the disc 18 is disengaged from the hooking portion 22a at the end of the lever 22. As a result, the lever 22 is oscillated and returned to its original position as shown in Fig. 4, and, at the same time, the oscillatory frame 28 is returned to its original position where it is inclined. In this case, the angle of rotation of the main shaft 13 is so small that it is just sufficient to disengage the hook 22a of the le~er 22 from the projection 18a of the disc 18. Then, the end l9b of t~e arm por~ion l9B of the first V-shaped arm 19 is immediately engaged with the engagement portion 15a of the cam 15 to stop the ^rotation of the main shaft 13. Thus, the copying machine is returned to ~he initial stage of operation as shown in Fig. 4, where the preparation for feeding the next copying paper is made.
3~1 When copies are continuously taken, the above-described opera-tion is repeated. A desired number of copies can be taken owing to a counter (not shown) provided in the copying machine.
After a copying operation has been completed, the mount 1 for the original is always stopped at a stopping point S in the path thereof.
When the copying paper 45 is fed by hand, the cassette 12 is lowered to the lower position as shown in phantom in Fig. l-A~ Then, the paper 45 may be fed by hand while using the cassette 12 as a guide, so that the front end of the paper 45 is contacted with the stopper 33. A printing button is thereafter pressed to transfer the paper 45 synchronously with the original, and the remaining part of the operation is the same as described above.
Thus, the original and copying paper can be synchron-ously transferred by a mechanical means unlike the conventional methods in which an electrical means using a detecting means, such as a limit switch is employed. Therefore, the method of the present invention makes complicated connections of electric wires unnecessary. Moreover, it permits a reduction of the cost of manufacturing the copying machines owing to the simple construction thereof and enables inspections to be carried out easily for the maintenance thereof.
Claims (7)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. An apparatus for synchronously transferring an original and a sheet of copying paper for electrostatic photo-duplication, said apparatus comprising a mount for holding the original, said mount being mounted for reciprocal movement in said apparatus in a plane parallel to the plane of the original, a driving mechanism con-nected to the mount for reciprocating the mount at a predetermined speed, means for directing light at an irradiation point along the path of reciprocation of said mount, paper transfer means for feeding a sheet of copy paper along a copying paper transfer path in said apparatus, exposure means at an exposure point along said transfer path spaced from said paper feeding means in the direction of paper feed, image reflecting means for directing the image from said irradiation point to said exposure point, for optically aligning the exposure point with said irradiation point, paper edge engaging means positioned along said paper transfer path between said transfer means and said exposure point, said paper edge engaging means being movable into and out of the trans-fer path said paper transfer means normally being in a condition in which it does not transfer copying paper, and said paper edge engaging means normally being in the transfer path of the copying paper, and operating means connected to said paper transfer means and said paper edge engaging means and actuated in response to movement of said mount for changing the condition of said paper transfer means to a condition for transferring paper and for simultaneously moving said paper edge engaging means out of the copying paper transfer path when said mount has reached a predetermined position along the path of movement thereof at which position the time for the leading edge of the original to reach the irradiation point from said predetermined position is the same as the time for the leading edge of the copying paper to be fed from said edge engaging means to said exposure point.
2. An apparatus as claimed in claim1 in which said operating means includes a member projection into the path of movement of said mount at said predetermined position along the path of movement of the mount for actuating said operating means.
3. An apparatus as claimed in claim1 in which said paper transfer means comprises a fixed roll means above the copying paper transfer path and a movable roll means below the transfer path and movable toward and away from said fixed roll means, and said operating means comprises a roll moving means connected to said movable roll means for moving said movable roll means from a normal position spaced from said fixed roll means toward and away from a position in which the movable roll means can nip a sheet of copying paper between it and said fixed roll means.
4. An apparatus as claimed in claim 3 in which said movable roll means comprises a frame member pivoted at a point adjacent the copying paper transfer path and pivotable toward and away from said fixed roll means, and a movable paper transfer roll mounted on said frame member, and said paper edge engaging means comprises a paper edge engaging member pivotally mounted on said frame and means engaging said paper edge engaging member normally pivoting it to an upright position transverse to the length of the frame, and spring means connected to said paper edge engaging member normally exerting a tension on said paper edge engaging member tending to pivot it to an angular position on said frame member in which it is out of the copying paper transfer path and said paper edge engaging means is free of said means engaging said paper edge engaging member, said roll moving means comprising a member for pivoting said frame toward said fixed roll means
5. An apparatus as claimed in claim 1 further comprising a supply means for holding a supply of sheets of copying paper, paper feed means positioned adjacent said supply means for engaging one sheet of the supply of sheets at a time and feed it generally in the direction of the plane of the sheet of paper along said copying paper transfer path toward said paper transfer means and for moving the leading edge of the sheet of copying paper against said paper edge engaging means, and said operating means is connected to said paper feed means and is actuated in response to the movement of said mount for actuating said paper feed means and, after a delay, subsequently changing the condition of said paper transfer means when said mount has reached a predetermined position along the path of movement thereof at which the time for the leading edge of the original to reach the irradiation point is the same as the time for the leading edge of the copying paper to be fed from said supply means to said paper edge engaging means, held at said paper edge engaging means and then fed from said paper edge engaging means to said exposure point.
6. An apparatus as claimed in claim 5 in which said operating means includes a member projecting into the path of movement of said mount at said predetermined position along the path of movement of the mount for actuating said operating means.
7. An apparatus as claimed in claim 5 in which said paper transfer means comprises a fixed roll means above the copying paper transfer path and a movable roll means below the transfer path, and a frame member pivoted at a point adjacent the transfer path and pivotable toward and away from said fixed roll means and on which said movable roll is mounted, and said paper edge engaging means comprises a paper edge engaging member pivotally mounted on said frame and means engaging said paper edge engaging member normally pivoting it to an upright position transverse to the length of the frame, and spring means connected to said paper edge engaging member normally exerting a tension on said paper edge engaging member tending to pivot it an angular position on said frame member in which it is out of the copying paper transfer path and said paper edge engaging means is free of said means engaging said paper edge engaging member, and said supply means is positioned for feeding the sheets of copying paper along said frame member when it is in its downwardly pivoted position for causing said sheets to move between said roll means and against said paper edge engaging member due to inertia of the sheet of copying paper and the effect of gravity thereon, said operating means comprising a member con-nected to said frame member for pivoting it toward and away from said fixed roll means.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6974877A JPS544132A (en) | 1977-06-11 | 1977-06-11 | Synchronizing method and apparatus of document and copy paper in electrostatic photography copy |
| JP69748/1977 | 1977-06-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1103301A true CA1103301A (en) | 1981-06-16 |
Family
ID=13411720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA305,254A Expired CA1103301A (en) | 1977-06-11 | 1978-06-12 | Method of and apparatus for synchronously transferring an original and copying paper for electrostatic photoduplication |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4181424A (en) |
| JP (1) | JPS544132A (en) |
| CA (1) | CA1103301A (en) |
| DE (1) | DE2825389C2 (en) |
| FR (1) | FR2394119A1 (en) |
| GB (1) | GB1603067A (en) |
| IT (1) | IT1162196B (en) |
| NL (1) | NL175233C (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2051747B (en) * | 1979-05-17 | 1984-02-15 | Canon Kk | Sheet copying apparatus |
| JPS55153959A (en) * | 1979-05-17 | 1980-12-01 | Canon Inc | Image former |
| US4300830A (en) * | 1979-09-18 | 1981-11-17 | Nashua Corporation | Sheet removal assembly |
| US4372668A (en) * | 1980-12-24 | 1983-02-08 | Xerox Corporation | Sheet registration actuation |
| JPS57138658A (en) * | 1981-02-20 | 1982-08-27 | Canon Inc | Sheet feeding device for copying machine or the like |
| JPS57138657A (en) * | 1981-02-20 | 1982-08-27 | Canon Inc | Sheet feeding device for copying machine or the like |
| US4354759A (en) * | 1981-05-01 | 1982-10-19 | Pitney Bowes Inc. | Copy paper feed mechanism |
| JPS5867467A (en) * | 1981-10-20 | 1983-04-22 | Shizuoka Daigaku | Ink jet image recording device |
| US4506978A (en) * | 1983-07-01 | 1985-03-26 | Xerox Corporation | Document registration system |
| US4529188A (en) * | 1983-07-05 | 1985-07-16 | Xerox Corporation | Sheet feeding and registration apparatus |
| US4609281A (en) * | 1984-02-08 | 1986-09-02 | Sanyo Electric Co., Ltd. | Portable electrostatographic copying machine |
| US4635010A (en) * | 1984-02-16 | 1987-01-06 | Sanyo Electric Co., Ltd. | Portable electrophotographic copy machine |
| JPS62159972A (en) * | 1985-12-27 | 1987-07-15 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | Document scanner |
| JPS6285272A (en) * | 1986-05-16 | 1987-04-18 | Canon Inc | Image forming device |
| JPS63220234A (en) * | 1987-03-10 | 1988-09-13 | Fuji Photo Film Co Ltd | Scanning and exposure device |
| JP2508820B2 (en) * | 1988-10-29 | 1996-06-19 | 岩崎通信機株式会社 | Electrophotographic plate making machine |
| JP2682907B2 (en) * | 1991-05-23 | 1997-11-26 | シャープ株式会社 | Platen drive device and movable platen copy machine |
| KR0164382B1 (en) * | 1995-11-17 | 1999-03-20 | 김광호 | Feeder driving device of electrophotographic processor |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3062094A (en) * | 1958-12-29 | 1962-11-06 | Xerox Corp | Electrophotographic copying apparatus |
| NL302428A (en) * | 1963-01-03 | 1900-01-01 | ||
| US3387586A (en) * | 1966-06-06 | 1968-06-11 | Addressograph Multigraph | Magnetic developer apparatus |
| DE1797639C3 (en) * | 1966-12-10 | 1980-06-19 | Canon K.K., Tokio | Air flow in a copier working with progressive, strip-wise projection |
| JPS4912184B1 (en) * | 1969-04-25 | 1974-03-22 | ||
| US3762813A (en) * | 1972-02-16 | 1973-10-02 | Dick Co Ab | Document feeder for electrostatic copier |
| JPS5099146A (en) * | 1973-12-27 | 1975-08-06 |
-
1977
- 1977-06-11 JP JP6974877A patent/JPS544132A/en active Granted
-
1978
- 1978-05-30 GB GB24255/78A patent/GB1603067A/en not_active Expired
- 1978-06-02 NL NLAANVRAGE7806032,A patent/NL175233C/en not_active IP Right Cessation
- 1978-06-09 DE DE2825389A patent/DE2825389C2/en not_active Expired
- 1978-06-09 FR FR787817411A patent/FR2394119A1/en active Granted
- 1978-06-12 US US05/915,303 patent/US4181424A/en not_active Expired - Lifetime
- 1978-06-12 CA CA305,254A patent/CA1103301A/en not_active Expired
- 1978-06-12 IT IT83621/78A patent/IT1162196B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| NL175233B (en) | 1984-05-01 |
| IT7883621A0 (en) | 1978-06-12 |
| JPS5719790B2 (en) | 1982-04-24 |
| JPS544132A (en) | 1979-01-12 |
| DE2825389A1 (en) | 1978-12-14 |
| DE2825389C2 (en) | 1982-03-04 |
| FR2394119B1 (en) | 1983-10-28 |
| IT1162196B (en) | 1987-03-25 |
| NL7806032A (en) | 1978-12-13 |
| FR2394119A1 (en) | 1979-01-05 |
| US4181424A (en) | 1980-01-01 |
| NL175233C (en) | 1984-10-01 |
| GB1603067A (en) | 1981-11-18 |
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